8914-PS-AC MTL Safe DC Bus Power Supply

Description

8914-PS-AC MTL Safe DC Bus Power Supply

8914-PS-AC MTL Safe DC Bus Power Supply

Comprehensive programming tools

The SafetyNet System is programmed using the Workbench software package – in common with the MOST Process Control Products. In addition to providing the options of programming the required safety function in one of three IEC 61131-3 languages (Ladder Diagram, Function Block Diagram and Structured Text) the package also provides many useful tools to assist in testing and commissioning.

Restricted access

Access to modify safety-related parameters within the configuration and application program must be restricted to authorised personnel. The SafetyNet system provides a number of layers and methods of providing this protection. Only users with “Safety Responsibility” can access the safety-related aspects of the Workbench. Only computers that the SafetyNet Controller identifies as “trusted hosts” can download new parameters. A download can only take place when an “over-ride key-switch” is set to the required position. And, if required, each SafetyNet Controller can be protected by its own password – without which access to the safety parameters is denied.

Maintaining field instruments

Maintenance over-rides can be implemented from operator workstations in full compliance with the guidelines from TUV. Users define – as part of the safety application – the actions to be taken to maintain a particular instrument and the SafetyNet System then implements these pre-defined actions.

HART capability

The SafetyNet System allows full access to HART field devices for Emerson’s AMS maintenance software. (The first release of SafetyNet will not have full HART capability, contact MTL for further information).

Earth leakage detection

Earth leakage fault detection may be implemented using the 8751-CA-NS Controller Carrier in conjunction with an input channel from an 8811-IO-DC Discrete I/O Module. If ELFD is not required, SafetyNet Controllers can be mounted on 8750-CA-NS Controller Carriers.

On-line changes

Where allowed by local practices – and following adequate testing and approval – new safety programs and configuration can be downloaded on-line and in real time. In some situations, this may be possible without interrupting the operation of the safety function.

Overview of Engineering Equipment: The boiler renovation project of Yongmei Group Thermal Power Plant has been tendered to use Hunan Energy Conservation Design Company to renovate the boiler produced by Hangzhou Boiler Plant, with a model of YM130-3.8/450-M and a 130 ton medium temperature and medium pressure circulating fluidized bed boiler. This boiler is a single drum, natural circulation steam boiler mainly used for power generation and urban heating. The combustion system of the boiler consists of a furnace, a cyclone separator, a return feeder, and a tail convection flue. A water-cooled air distribution plate is used, with evenly arranged air caps on the cross-section of the air distribution plate. After the primary hot air enters the water-cooled air chamber, these air caps evenly enter the furnace.

Coal is fed into the combustion chamber through four coal feeders located in front of the furnace, and coal slurry is transported through the furnace top into the furnace. According to the flow direction of fuel combustion, the structure of the boiler can be divided into four components, namely the combustion chamber, high-temperature cyclone separator, return material sealing device, and tail convection flue. There are high-temperature superheaters and low-temperature superheaters arranged along the flue gas flow in the tail convection flue. The high-temperature superheater is divided into high-temperature cold section and hot section, with a spray attemperator in the middle. The lower part is sequentially arranged with an economizer and an air preheater for heating the primary air. The boiler is equipped with 2 induced draft fans and 1 primary fan. The boiler is ignited with charcoal on the bed. Economical and economical ignition costs.

Model Product:
AKM24D-DCC2R-00
AKM24D-EFCNC-00
AKM24D-EFCNR-00
AKM24D-EFCNR-01
AKM24D-EFPNC-01
AKM24D-ENC2C-00
AKM24D-ENC2D-00
AKM24D-ENC2R-00
AKM24D-ENCNC-00
AKM24D-ENCNC-01
AKM24D-ENCNR-00
AKM24D-ENMNR-00
AKM24D-ENPNC-00
AKM24F-ACCNC-00
AKM24F-ACCNR-00
AKM24F-ACMN2-00
AKM24F-ANC2R-00
AKM24F-ANCN2-00
AKM24F-ANCNR-00
AKM24F-ANMNE-00
AKM24F-ANMNR-00
AKM24F-BNC2R-00
AKM24F-BNCN2-00
AKM24F-BNCNC-01
AKM24F-BNCNR-00
AKM24F-BNCNR-01
AKM24F-BNM22-00
AKM24F-BNMN2-00
AKM24F-BNMNC-00
AKM24F-BNPNC-00
AKM24F-BSM22-02
AKM24F-DCCN2-00
AKM24F-EFC2R-00
AKM24F-EFCNR-00
AKM24F-EFMNR-00
AKM24F-ENC2R-01